-50.49% is the change from 923 to 457
Calculation steps:
[( 457 - 923 ) ÷ 923] x 100 = -50.49%
Formula
Percentage change = [(457 - 923) / 923] x 100
Subtract the new number by the original number
457 - 923 = -466
-466 ÷ 923 = -0.504875406283857
-0.504875406283857 x 100 = -50.49%